Detachable draw-bar and yoke connection.



3. F. OCONNOR. DETACHABLE DRAW BAR AND YOKE CONNECTION.

APPLICATION FILED JULY \5. I916.

Patented Dec. 3, 1918.

JOHN F. OCONN'OR, 0F CHIClAGO, ILLINOIS, ASSIGNGJR T0 WILLIAM H. MINEZE, fi l? CHAZ Y, NEW YORK.

DETACHABLE DRAW-BAR AND YOKE CQNNECTION.

Application filed July 15, 1913.

To all whom it m 03 concern Be it known that 1, JOHN F. QConnon, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Detachable Draw- Bar and Yoke Connections, of which the following is a full, clear, concise, and exact description, reference being bad to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in. detachable draw bar and yoke connection.

One obiect of the invention is to provide a yoke having a hood at its forward end, with a-shiftable shouldered locking block mounted within the hood.

Another and more specific object of the invention is to provide a two-part yoke which, when the parts are assembled, form a hollow hood at their forward ends to receive the draw bar butt, the hood having vertically slidably mounted therewithin, a shouldered locking block to coiiperate with the lower shoulder of the draw bar.

In the drawing forming a part of this specification, Figure l is a part longitudinal section, part side elevation of a draw bar and yoke showing my improvements in connection therewith; Fig. 2 is a horizontal sectional view of the structure illustrated in Fig. 1 and takenon the line 22 thereof. Fig. 3 is a frontend elevation of the improved yoke shown in Fig. 1. Fig. 4 is a. vertical, transverse section taken on the line 44 of Fig. 1. Fig. 5 is a perspective view of the improved locking block employed with the yoke. F ig. 6 is a. detailed view illustrating one of the yoke members and particularly the hinge forming connection thereon.

In the drawing, 10 denotes IV. C. B. draw bar having usual upper and lower shoulders 11 and 12. The improved voke A comprises two members 13 and 14, each of loop formation, the upper and lower arms of each of said members being connected at their front ends by side plates 1515. The member 13 is provided at its front end, on the top thereof, with an inwardly extended hinge lug 16, the lug extending downwardly, and the member 1% is provided with acorrcsponding hinge lug 1? which extends upwardly, the two lugs 16 and 17 forming a detachable hinge jointby which the yoke parts are con- Specifioetton or Letters Patent.

Patented Dec, 53,

Eelial No. 109,419.

18 which is offset outwardly, an inwardly extended lug l9, and another recess or groove 20 at the rear of the lug 19. When the two yoke members 13 and 1 1 are brought into parallel position, they form a hood to receive the draw bar butt, and in the bottom of said hood is provided a recess formed by the grooves 18 and 20 and the lugs 19 and within which is vertically slidably mounted a locking block B. The latter consists of a front portion 21 which is slidable within the'grooves 18, a rear portion22 which is slidable within the recesses 20, a central por-- tion 23 of reduced width which is slidable between the lugs 19, and horizontally outwardly extended shoulders or ledges 24.-2

which engage beneath said lugs 19 and limit the upward movement of the block. The portion 22 of the locking block is shouldered on its undeniace as indicated at 25 which shoulder cooperates with horizontal shoulders or ledges 26 formed on the inner faces of the side plates of the yoke members. Said shoulders 26, as clearly appears from Fig. 1, limit the downward movement of the locking block and prevent the latter from dropping out of the. yoke when the two arts of the latter are held in operative position. The locking; block B is held up or in operative position by means of a transverse, extending bolt 27 which passes through suitable perforations in the side walls 15 and through perforations 28 in the locking block. As will be understood, the block B is placed. between the two yoke parts before the latter are swung to parallel position and hence when the yoke parts are brought parallel to each other and held in this condition, the block B is slidably inounted in the lower portion of the hood and the yoke A is limited in its up and down movemcnts so that it cannot become displaced.

33y removing the bolt '27, the block B can corresponding also be apparent, the block B bears against a number of suitable shoulders formed by the yoke parts, thus relieving the bolt 27 of strain due to pulling movements on the draw bar.

I claim:

1. A yoke having parallel arms and provided with means for engaging the upper shoulder of a draw bar butt, and a vertically adjustable shouldered block separate from said arms and mounted in the lower part of the yoke for engagement with the lower shoulder of a draw bar butt, and means for holding said block in elevated operative -position.

2. A yoke having parallel arms and prowided with a hooded forward end, means in the hooded end for engaging the upper" shoulder of a draw bar butt, and a verti cally adjustable shouldered block separate from said arms and mounted in the lower part of said hood and adapted to engage the lower shoulder of a draw bar butt, said yoke having means preventing removal of the block therefrom, and means for holding said block in operative position.

3. As an article of manufacture, a twopart yoke, the parts having means for preventing lateral separation thereof when operatively assembled, the parts also forming a hood at the forward end of the yoke with a recess in the bottom wall of the hood and a locking block mounted within said recess and adapted to engage the lowcnshoulder of a draw bar butt.

4:- A yoke for draft riggings comprising two parts which, when assembled, form a hood at the forward end ofthe yoke adapted t receive adraw bar butt and the said parts having upper shoulders to engage the upper shoulder of a draw bar butt, said parts also forming, when assembled, a recess in the lower part of the hood and a lockinq block slidably mounted within said recess and adapted to engage the lower shoulder of a draw bar butt.

5. As an article of manufacture, a yoke for draft riggings comprising two parts detachably connected together and having a hood formed at their forward ends to receive a draw bar butt, the hood being provided with a recess in the bottom wall thereof, and a shouldered locking block vertically slidably mounted within said recess when. the yoke parts are assembled.

(5. As an article of manufacture, a yoke for draft riggings comprising two parts dctachably connected together and having a hood formed at their forward ends to receive a draw bar butt, the hood being provided with a recess in the bottom wall thereof, and a shouldered lockin block vertically slidably mounted within said recess when the yoke parts are assembled, the yoke parts and said block hav lng cooperating shoulders limiting the up and down movement of the block relatively to the yoke to thereby prevent the block from being taken out when the yoke parts are assembled.

In witness that I claim the foregoing I "have hereunto subscribed my name this 12th day of July 1916.

JOHN F. OCONNOR. Witnesses:

Gonom A. Brsnor, ELIZABETH M. Bnrr'r. 

